A110－1－H／A110－1型氨合成催化剂在双筐并流合成塔中的使用

在双筐并流氨合成塔中使用了Ａ１１０－１－Ｈ／Ａ１１０－１型氨合成催化剂，使用寿命达１７４０天，累计产氨４３８３７８ｔ．该催化剂组合具有低温活性好、易还原、高催化活性、高抗毒能力、良好的热稳定性与破碎强度等优点．     

改性膨润土对甲基橙的吸附

在用Cu^2 A‘^3 Fe^3 对膨润土改性中，Fe^3 改性的膨润土对甲基橙的吸附性能最好，在振荡20分钟后即可达到吸附平衡。pH=3～7、用量为3g／L、25℃时对甲基橙的吸附量达到最大，在pH=7及常温条件下，铁基膨润土的用量为11g／L时，对浓度为250mg／L甲基橙的吸附量和去除率分别为22.2mg／g98．6％；对浓度为40mg／L的甲基橙去除率达97.1％。     

电解法处理利福霉素SV钠废渣分离液的研究

根据电化学原理，采用电解法，利用铁屑与炭粒作电极，处理利福霉素SV钠药渣分离液，讨论各种因素对分离液污染物作效果的影响，COD去除率可达91．8％左右，脱色率可达95％左右。     

论"规范与统一"原则在经贸术语翻译中的具体化

目前,经贸术语译名研究存在三个主要问题:试图从纯翻译技巧的角度去实现"规范与统一原则";把规范等同于统一:过分强调统一而忽视特定社会共享的价值和观念."规范与统一"原则似乎过于笼统,在经贸术语翻译实践中操作性不强,因此必须将这一原则具体化,目的是制定相关可行性标准.以期解决经贸术语译名混乱问题.     

Preparation of micro-patterned surfaces of Si-N-O films and their influence on adhesion behavior of endothelial cells

Microgrooves were prepared on Si(100) surface by photolithography and wet etching.Subsequently,Si-N-O films were deposited on the microgrooves by unbalanced magnetron sputtering(UBMS) and micro-patterned surfaces of Si-N-O films were obtained.The size of the micropatterns was measured by surface profilometer.The chemical composition of Si-N-O films were characterized by X-ray photoelectron spectrometry(XPS) and the wettability of the micropatterned surfaces was evaluated by contact angle measurement.The beh...     

Dynamic equivalent method of interconnected power systems with consideration of motor loads

The existing equivalent methods usually only deal with static load models and neglect the dynamic characteristics of loads such as induction motors.This paper presents a dynamic equivalent method which considers motor dynamics.At first,the clustering criterion of motor loads is given.The motors with similar dynamic characteristics are classified into one group.Then,reduction of motors in the same group is carried out.Finally,parameters of the equivalent motor are calculated and the equivalent system is thus...     

裙子变长 奢华依旧——浅析经济危机下的时装流行走向

在全球性事件的大背景下,流行趋势研究更能显示出其价值,本文通过分析经济危机下时装行业的最新动态,总结并预测时装流行及时装业发展的未来走向,可以提供给中国时装业一些思考。     

某厂区重交通水泥混凝土路面病害成因分析及治理

针对目前某工厂主厂道由于受到重交通作用而造成水泥混凝土路面损坏严重的现状,笔者先从水泥混凝土路面主要病害的种类及其产生的原因着手加以分析,进而对在旧路面上半直接式加铺水泥混凝土和钢纤维水泥混凝施工技术进行了介绍和总结.     

4－氨基安替比林比色法测定水中苯胺类

基于苯胺与４－氨基安替比林的显色反应提出一种新的苯胺测定方法。本方法可以测定浓度为０．０２～４０ｍｇ／ｌ的苯胺水样，方法的回收率为９５．９％～１０２％，相对标准偏差为０．６３％～１．９７％。     

Finite difference method for dynamic response analysis of anchorage system简

Based on some assumptions, the dynamic analysis model of anchorage system is established. The dynamic governing equation is expressed as finite difference format and programmed by using MATLAB language. Compared with theoretical method, the finite difference method has been verified to be feasible by a case study. It is found that under seismic loading, the dynamic response of anchorage system is synchronously fluctuated with the seismic vibration. The change of displacement amplitude of material points is slight, and comparatively speaking, the displacement amplitude of the outside point is a little larger than that of the inside point, which shows amplification effect of surface. While the axial force amplitude transforms considerably from the inside to the outside. It increases first and reaches the peak value in the intersection between the anchoring section and free section, then decreases slowly in the free section. When considering damping effect of anchorage system, the finite difference method can reflect the time attenuation characteristic better, and the calculating result would be safer and more reasonable than the dynamic steady-state theoretical method. What is more, the finite difference method can be applied to the dynamic response analysis of harmonic and seismic random vibration for all kinds of anchor, and hence has a broad application prospect.